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RE: Cisco IOS 12.2 DHCP client and cable modem posted 08/26/2002
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The cable between the cable modem and the cisco router should be straight
through? shouldn't it? Please clarify/

Sam

-----Original Message-----
From: P729 [mailto:p729@xxxxxxx]
Sent: Monday, August 26, 2002 3:25 PM
To: Song Mu; Sam.MicroGate@xxxxxxxxxxxxxx; ccielab@xxxxxxxxxxxxxx
Subject: Re: Cisco IOS 12.2 DHCP client and cable modem


Just a suggestion: try inserting a hub or switch between the cable modem and
the router. I can't offer anything other than a guess as to why this has
worked for me in the past when a crossover didn't, but my guess would be
it's a matter of who does what when and then gives up in certain half-duplex
situations.

Regards,

Mas Kato
https://ecardfile.com/id/mkato
----- Original Message -----
From: "Song Mu" <songmu@xxxxxxxxx>
To: "Phil" <ciscostudent1@xxxxxxxxxxxx>; <Sam.MicroGate@xxxxxxxxxxxxxx>;
<ccielab@xxxxxxxxxxxxxx>
Sent: Monday, August 26, 2002 11:26 AM
Subject: Re: Cisco IOS 12.2 DHCP client and cable modem


I have tested different version of IOS on a 1605R with Motorola Cable
Modem.  Some times work some times don't.  Finally, I just put the IP
once came from the dhcp server to the interface as static:-). Later on,
I tried the dhcp again and lost that IP (that IP did not work as a
static any more), then I connected my PC and get another IP address
again to put to the interface as static.

I did try many time to reboot the modem and the router according to the
ISP, it need to wait about 90 seconds to power up the modem. No
indication of that action effect any thing even I put the dhcp server
IP address from the PC to the router.

I am wondering if Cisco IOS has a command something like Microsoft's
ipconfig /renew or /release.  That probably would help.

Thanks,

Song
--- Phil <ciscostudent1@xxxxxxxxxxxx> wrote:
>  Sam,
> Did you reboot the cablemodem after yuou plugged the router? I was
> using 12.1.5T and it worked just fine.
> Phil
>
>   Sam.MicroGate@xxxxxxxxxxxxxx escreveu: Hello group,
>
> I am trying configure an Ethernet interface as DHCP client to a cable
> modem
> by connecting the interface with a straight through cable to the
> Ethernet
> interface of the cable modem. But it cannot grape the ip information
> from
> the cable modem. The Ethernet interface work fine with any DHCP
> server such
> as another cisco router or windows NT server. I turned the debug on
> and it
> sends DHCP requests but no DHCP offers coming from the cable modem. I
> know
> some of the member in this group got it to work. Any idea in getting
> this to
> work. Thanks.
>
> Elsayed Mohamed
> Sr. Network Consultant
> Microgateds, Inc.
> 732-936-4413
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